England · Local authority

Welwyn Hatfield planning applications

PlanningTrack collects planning applications and decisions from the public planning register of Welwyn Hatfield Borough Council. Search an address, application reference or proposal. Official Welwyn Hatfield website

Collected application statistics

Collected records · All available dates
40,146Searchable applications
300Recorded as pending
86%Approval rate · 33,676 approved or refused records
4,802Refused applications

28,874 approved · 4,802 refused · 2,208 withdrawn. Received dates in our records: 29 Apr 1948 to 26 Oct 2026. Most recent record check: 31 Oct 2026. Counts reflect the last collected status; some records may be out of date.

Local planning information

Council sources checked 14 Sept 2026

Conservation areas and Article 4 directions

Explore published planning boundaries and follow their source records for designation details. Coverage varies: an empty map does not mean there are no restrictions. Check the council’s current maps and documents before relying on a boundary.

Conservation areas9 mapped area records
Article 4 direction areasNo boundary records available in this collection

Interactive planning map loads with JavaScript. Dataset sources are linked below.

Download Article 4 coverage for all authorities (CSV)

Data downloaded 14 Sept 2026. Display boundaries are simplified and indicative. Map record counts are not a complete count of designations or directions.

Sources: Planning Data conservation areas and Article 4 direction areas. Contains public sector information licensed under the Open Government Licence v3.0.

More application records

  1. Decided - RefusedS6/2015/1105/FP

    Retention of single storey storage barn, open horse walker and associated fencing

    Spike Island Hornbeam Lane Brookmans Park

    Received 26 May 2015
  2. Decided - GrantedN6/2014/2051/TC

    Fell remaining stem from Ash tree, pollard field maple tree above cavity, reduce weight, leverage and reduce Oak tree branch length by 2m, prune out dead and diseased wood from Sycamore tree and remove second Sycamore tree

    Land at, Bibbs Hall Lane & Shaws Corner, Welwyn, Welwyn, AL6 9BX

    Received 4 Sept 2014
  3. Decided - Granted6/2016/2194/HOUSE

    Erection of single storey rear extension

    152 Brookside Crescent Cuffley Potters Bar EN6 4QL

    Received 19 Oct 2016
  4. Decided - GrantedS6/2006/0703/FP

    ERECTION OF REAR CONSERVATORY

    5 Waight Close Hatfield AL10 9GA

    Received 31 May 2006
  5. Appeal Decided - Allowed6/2019/3177/LAWE

    Certificate of lawfulness for retention of caravan sited on parking space

    Howe Wood Farm, White Stubbs Lane, Bayford, Hertford, SG13 8QA

    Received 18 Dec 2019
  6. Decided - RefusedS6/2009/1571/FP

    ERECTION OF REAR CONSERVATORY

    32 FIRS WOOD CLOSE, NORTHAW, POTTERS BAR, HERTFORDSHIRE, EN6 4BY

    Received 22 Jul 2009
  7. Decided - Granted6/2021/0951/FULL

    Erection of four, four-bedroom detached dwellings following the demolition of existing dwelling, commercial building and garages.

    13 New Road Welwyn Garden City AL8 7TX

    Received 24 Mar 2021
  8. Decided - RefusedS6/2009/0037/FP

    ERECTION OF FIRST FLOOR SIDE EXTENSION, SINGLE STOREY REAR EXTENSION AND FORMATION OF BAY WINDOW TO THE FRONT ELEVATION

    BROOKFIELD, 67 WARRENGATE ROAD, NORTH MYMMS, HATFIELD, HERTFORDSHIRE, AL9 7TT

    Received 8 Jan 2009
  9. Decided - GrantedS6/2012/2639/FP

    Alterations to shop front, including the installation of roller shutters

    42 Town Centre, HATFIELD, AL10 0JJ

    Received 19 Dec 2012
  10. Appeal Decided - Dismissed6/2023/1295/HOUSE

    Alterations to the existing roof to raise the ridge height, hip to half-hip extension, enlarge front and rear gable, installation of dormer windows to the front and rear roof slope and fenestration alterations

    4 Swanland Road North Mymms Hatfield AL9 7TG

    Received 21 Jun 2023
  11. Decided - Refused6/2026/0515/LAWP

    Certificate of lawfulness for the erection of a loft conversion including a rear dormer and rooflights to the front roof slope

    43 Appletree Way Welwyn Garden City AL7 2FE

    Received 19 Mar 2026
  12. Decided - WithdrawnN6/2013/0058/LB

    Retention and completion of brick piers and gates

    Paynes Farm New Road Woolmer Green Knebworth SG3 6LE

    Received 14 Jan 2013
  13. Decided - Granted6/2019/2525/EM

    Replacement and enlargement of driveway

    160 Parkway Welwyn Garden City AL8 6HZ

    Received 9 Oct 2019
  14. Decided - Granted6/2019/3042/LAWP

    Certificate of lawfulness for the installation 3 front facing rooflights and rear dormer with juliet style doors to facilitate loft conversion

    99 Hatfield Road Little Heath Potters Bar EN6 1HZ

    Received 2 Dec 2019
  15. Decided - Granted6/2023/0787/HOUSE

    Erection of single storey rear extension following demolition of existing rear extension, new vehicle entrance and associated landscaping

    London Lodge Bedwell Park High Road Essendon Hatfield AL9 6HY

    Received 11 Apr 2023
  16. Decided - Granted6/2026/1129/COND

    Submission of details pursuant to Condition 1 (Landscaping), Condition 2 (Materials) and Condition 3 (Energy Efficiency) on planning permission 6/2024/1841/FULL

    Holwell Hyde Cottage Holwell Hyde Lane Welwyn Garden City AL7 4AA

    Received 30 Jun 2026
  17. Decided - Granted6/2021/3303/HOUSE

    Conversion of garage to habitable use

    287 Knella Road Welwyn Garden City AL7 3NS

    Received 23 Nov 2021
  18. Decided - GrantedN6/2007/1326/FP

    ERECTION OF A SINGLE STOREY EXTENSION TO OUTBUILDING TO PROVIDE INDOOR SWIMMING POOL

    AYOT MONTFICHET, Ayot St Peter, WELWYN, Hertfordshire, AL6 9BH

    Received 4 Sept 2007
  19. Decided - Granted6/2024/0369/LAWP

    Certificate of lawfulness to replace the existing window with a larger window in the central dormer of the front elevation

    68 New Park Road Newgate Street Hertford SG13 8RF

    Received 27 Feb 2024
  20. Decided - Granted6/2019/1841/TPO

    Reduce crown x 1 Oak tree by 40% covered by TPO 575 (2016)

    Tolmers Scout Camp Tolmers Road Cuffley Potters Bar EN6 4JS

    Received 23 Jul 2019
  21. Decided - Granted6/2017/1966/HOUSE

    Erection of part double, part single storey rear and a single storey front extension. Alterations to existing doors and windows. Alterations to driveway. Construction of rear patio

    3 Adele Avenue Digswell Welwyn AL6 0AU

    Received 1 Sept 2017
  22. Decided - Granted6/2021/0220/HOUSE

    Renovation of existing detached house, to include single storey extension of the entrance porch, removal of existing boiler house to rear extension, alterations to existing openings to front and rear elevations, and installation of new render and horizontal cladding to all elevations.

    16 The Ryde Hatfield AL9 5DH

    Received 25 Jan 2021
  23. Decided - Granted6/2022/0500/HOUSE

    Erection of a single storey rear extension following demolition of existing conservatory, installation of front roof window to facilitate loft conversion, enclosure of existing porch and conversion of garage to habitable space

    14 Warwick Avenue Cuffley Potters Bar EN6 4RS

    Received 2 Mar 2022
  24. Decided - GrantedS6/2008/2291/FP

    ERECTION OF TWO STOREY SIDE EXTENSION.

    8 SOMERS SQUARE, WELHAM GREEN, HATFIELD, HERTFORDSHIRE, AL9 7PS

    Received 1 Dec 2008

Records are ordered by application ID, not submission date. Use search to find a particular address or proposal.

View all applications

Get emailed about new planning applications in Welwyn Hatfield

Area alerts send a daily or weekly email with new applications and decisions near a postcode, filtered by project type. £29 a month, up to 3 areas. Records are limited to the councils we collect.

Set up an area alert

Researching a proposal in Welwyn Hatfield Borough Council

Start with the address or application reference. Open a record to read the proposal, dates and available documents, then check the official register for the latest plans and consultation details. If nothing appears, check coverage before treating the result as a complete planning history.

How to search planning applications

Guides to planning records

All planning guides
  • Understanding planning · 13 min read

    Planning application documents: what to read first

    Understand planning application documents, officer reports and decision notices. Use a reading checklist, document table and worked example to inspect a case.

  • Understanding planning · 13 min read

    Planning permission drawings: how to read plans

    Read planning drawings, floor plans, elevations and sections. Use labelled diagrams, a drawing comparison table and revision checks to understand a proposal.

  • Property research · 13 min read

    Planning approval rates: how to read council statistics

    Understand planning approval rates with an interactive calculator, worked examples and comparison table. Check sample sizes, outcomes and coverage before comparing.

What these statistics cover

These figures describe applications collected by PlanningTrack for Welwyn Hatfield Borough Council, across all dates currently available. They are a partial dataset, rather than an authority-wide performance measure. The date range does not establish continuous historical coverage.

The approval percentage is approved records divided by approved plus refused records. Pending, withdrawn and unknown outcomes are excluded. No percentage is shown until there is an approved or refused record.

Check collection coverage